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Air Conditioning Terminology

Whenever the air conditioner repairman inspects or performs maintenance on your unit, they may address any issues in terms you probably don’t understand. It is important to familiarize yourself with certain terms in order to understand what the problem is and prevent paying for a specific part that you could repair yourself or inexpensive to fix.

Common Air Conditioning Terms:

  • Air flow – The amount of air which your duct system can move measured in cubic feet per minute (cfm). Air conditioners are typically designed to move around 400 cfm for each ton of AC capacity.
  • Compressor – Controls the temperature and pressure of the refrigerant.
  • Condenser – Radiator-like part which converts high-pressure gas, extracted from the compressor, into liquid.
  • EER rating – The efficiency rating used for AC units fitted for windows, which is British thermal unit/hour of cooling divided by electricity input in watts.
  • Evaporator – Component where liquid refrigerant is transformed into gas as it absorbs heat from the air inside.
  • Expansion valve – Device designed to restrict flow of high-pressure refrigerant.
  • HVAC – Heating, ventilating, and air conditioning.
  • Latent heat – Amount of heat energy necessary to change a substance from one state of mater into another without temperature change.
  • Line set – Two refrigerant lines which connect the condensing unit to the evaporator coil.
  • MERV rating – Minimum Efficiency Reporting Value, which is a rating for filters used in HVAC systems. The higher the number, the more particles it is capable of trapping.
  • Refrigerant – Liquid used in refrigeration system which produces cold by removing heat.
  • SEER rating – The efficiency rating used for central air conditioners.

For more information about air conditioning terminology, contact Phoenix Air Conditioning, LLC and schedule a service with our Palm Beach County AC repair professional today.